Timed practice for PM and case-style interview drills — market sizing, prioritization, metrics, root cause analysis, and auto-graded business math. Results sync across your devices, and Business Math has a 🗓️ Daily Challenge — the same 5 questions for everyone, Wordle-style — plus a leaderboard per difficulty.
Start practicing →Estimate a real-world quantity from scratch. Practice structuring assumptions before you reach for a number — there's no single right answer, just a defensible one.
Rank or score competing initiatives under real constraints. Watch for traps like loudest-voice-wins or vanity metrics that don't map to actual impact.
Work through funnel, retention, and A/B test math step by step. Self-rate when you reveal the answer — there's a definite right number, but the goal is the method.
Diagnose why a metric moved, using clues embedded in the scenario. Segment first, then narrow hypotheses — don't jump to a conclusion before ruling things out.
Fast, auto-graded unit-economics calculations (CAC, LTV, margins, and more) in timed 5-question rounds across Easy/Medium/Hard/Mixed difficulty, plus a 🗓️ Daily Challenge with the same questions for everyone — each mode has its own leaderboard.